• Jan 22, 2021
  • LastUpdated 10:33 AM, Jul 21, 2017

Key Informant Interview (KII), In-depth Interview (IDI)

Contribution by Amol
Sep 22, 2015

Brief Description

- What is KII? - Techniques for KII - When to conduct KII? - In-depth Interviews

Detail Description

What is KII?

  • It is in-depth interview with people who has first hand knowledge about the community
  • These community experts offer better insights and  give  recommendations for solutions


  • KII is usually not about that person, but about the research topi
  • Diversity of the respondent is importan
  • Persistence is Key – Making it into someone’s schedule is hard enough

Two common techniques for KII

  • Face-to-face
  • Telephone Interview (You can do a Skype call\Video conferencing)

When to conduct KII?

  • When we want more in-depth information than FGDs
  • FGD dynamics may prohibit expression on sensitive topics
  • Some silent members do not voice their opinion in FGD (they may have more information)

Planning KII

  • Review the existing data (Conceptual framework)
  • Determine what information is needed
  • Brainstorm for the possible Key Informants
  • Choose KI – Ensure variety
  • Choose type of KI
  • Develop interview tool (Depends on approach)
  • Documentation plan
  • Conduct KII
  • Summary (Participant validation)
  • Compile and organize data

Ideal sequence

For sensitive topics:  2 or 3 sessions may be arranged

First session:  Less sensitive  topics.

Example:  “What are the places and situations where students meet and talk? (Maybe including some social mapping).”

Second and third meeting with the key informant:

  • Introduce more sensitive  topics.
  • Probe for specific details.
  • Try to get “full stories” of  events.


  • Listen effectively,
  • To begin, ask general questions
  • Probe for more details;  more examples-- from what s/he has just described.
  • Avoid any  negative facial or body reactions
  • Look for diversity
  • You can use diagrams/pictures/free-list

In-depth Interviews

  • It involves conducting intensive    individual interviews to explore their perspectives on a particular idea, program, or situation.
  • In-depth interviews are useful when you want detailed information about a person’s thoughts and behavior.


  • Identify respondents for in-depth interview
  • Topic – Stress coping mechanism
  • Think, Pair and Share